CN209736326U - Soil treatment device based on supercritical carbon dioxide - Google Patents
Soil treatment device based on supercritical carbon dioxide Download PDFInfo
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- CN209736326U CN209736326U CN201920351473.4U CN201920351473U CN209736326U CN 209736326 U CN209736326 U CN 209736326U CN 201920351473 U CN201920351473 U CN 201920351473U CN 209736326 U CN209736326 U CN 209736326U
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- roller
- carbon dioxide
- supercritical carbon
- worm
- screening mechanism
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Abstract
The utility model discloses a soil treatment device based on supercritical carbon dioxide, which comprises a body, a crushing mechanism, a screening mechanism, a worm wheel, a stirring mechanism and a reaction kettle, wherein the crushing mechanism, the screening mechanism, the worm wheel, the stirring mechanism and the reaction kettle are connected to the body; the upper end of the body is provided with a raw material bin, and a crushing mechanism is correspondingly arranged below the raw material bin and comprises a first roller and a second roller; the first roller is connected with the screening mechanism; the second roller is rotatably connected with a worm wheel through a rotating shaft, and the worm wheel is in meshing transmission connection with the stirring mechanism; the stirring mechanism is arranged at the central position of the reaction kettle, a feeding cavity is arranged at the upper left position of the reaction kettle, and an upper opening of the feeding cavity is arranged corresponding to the screening mechanism. The utility model discloses a device is administered to soil based on supercritical carbon dioxide, its structural design is simple compact, and the flexible operation is simple and convenient, and area is little, and soil treatment low cost can effectively have solved organic pollutant in the soil and be difficult to administer or administer problem with high costs.
Description
Technical Field
The utility model relates to a technical field is administered to soil, specific theory relates to a device is administered to soil based on supercritical carbon dioxide.
Background
The soil treatment method can be divided into the following steps according to the working principle: physical, chemical, biological and combined repair of these three methods. The physical repair technology has the advantages of simplicity, effectiveness and convenience in implementation. However, heat treatment has a significant impact on contaminated soil and some physical remediation methods also require some external conditions for use. Chemical remediation techniques are suitable for treating emergency pollution incidents, but have the disadvantage of high remediation costs. The bioremediation technique is less investment, but the repair cycle is longer.
supercritical Fluids (SCFs) are Fluids having a temperature above the critical temperature and a pressure above the critical pressure, e.g., carbon dioxide becomes a Supercritical carbon dioxide fluid at a temperature above 31.05 ℃ and a pressure above 7.4 MPa. In the supercritical state, the fluid has strong dissolving capacity and diffusion capacity, and has some characteristics of gas and liquid, so that the technology is widely applied to the fields of medicines, chemical engineering, biotechnology and the like.
The soil treatment process based on the supercritical carbon dioxide extraction technology can achieve environment-friendly treatment of soil organic matter pollution, so that a soil treatment device based on supercritical carbon dioxide needs to be developed urgently to meet the growing problem of soil organic matter pollution treatment.
SUMMERY OF THE UTILITY MODEL
In view of the weak point of the above prior art, the utility model discloses a main aim at provides a device is administered to soil based on supercritical carbon dioxide, its structural design is simple compact, and the flexible operation is simple and convenient, and area is little, and soil treatment low cost can effectively have solved organic pollutant in the soil and be difficult to administer or administer the problem with high costs.
In order to achieve the above purpose, the utility model adopts the technical scheme that:
A soil treatment device based on supercritical carbon dioxide comprises a body, and a crushing mechanism, a screening mechanism, a worm gear, a stirring mechanism and a reaction kettle which are connected to the body; the crushing mechanism comprises a first roller and a second roller, the first roller moves along the clockwise direction, and the second roller moves along the anticlockwise direction; the first roller is connected with the screening mechanism and drives the screening mechanism to act; the second roller is rotatably connected with the worm wheel through a rotating shaft, and the worm wheel is in meshing transmission connection with the stirring mechanism; stirring mechanism install in reation kettle's central point puts, feeding cavity has been seted up to reation kettle's upper left side position, feeding cavity's top opening with screening mechanism is corresponding to be set up, reation kettle's top is leaned on upper right position to install inlet tube and blast pipe, reation kettle's right side wall is leaned on the top position to install the intake pipe, reation kettle's left side wall is leaned on the bottom position to install the fluid-discharge tube.
Furthermore, the screening mechanism comprises a swing arm, a limiting frame and a screen plate; the limiting frame is of a door-shaped structure and is obliquely arranged at the center of the second roller, the door frame above the limiting frame is a solid part, and limiting grooves are formed in the inner sides of the two door columns below the limiting frame, close to the upper door frame part; the swing arm symmetry sets up the both sides of first cylinder, just swing arm one end is fixed the eccentric position of first cylinder, the other end pass through the articulated shaft with the mobilizable connection in upper end of sieve, the both sides frame of sieve is established spacing inslot, just the sieve is followed the length direction of sieve runs through spacing and can spacing inslot removes.
Furthermore, a cavity is formed below the limiting groove, and a spring is installed in the cavity along the vertical direction of the limiting frame.
Furthermore, a protective cover is arranged on the outer ring of the sieve plate along the length direction.
Furthermore, the first roller is connected with a first motor through a first rotating shaft, the first rotating shaft penetrates through the first roller and extends outwards to be connected with the worm gear, and the second roller is connected with a second motor through a second rotating shaft.
Further, still be provided with the heating jacket outside the reation kettle, reation kettle feeding cavity's below still is equipped with the valve.
Further, rabbling mechanism includes worm and stirring rake, the stirring rake is installed the lower extreme of worm, still be equipped with the locating piece on the worm, the locating piece with the axle sleeve that reation kettle center set up cooperatees, the worm upper end is opened has the worm screw thread with worm wheel engaged with.
further, the feeding cavity extends upwards to below the sieve plate in the screening mechanism, and the inclined plane at the bottom end of the feeding cavity is equal to the inclined angle of the sieve plate.
Furthermore, the stirring mechanism, the reaction kettle and a valve pipeline connected with the reaction kettle are all made of high-temperature and high-pressure resistant stainless steel materials.
The utility model has the advantages that:
The utility model discloses a soil treatment device based on supercritical carbon dioxide, not only the operation is nimble simple, but also soil organic pollutant desorption efficiency is high, and the treatment cost is low;
The utility model discloses a device is administered to soil based on supercritical carbon dioxide, its soil treatment process can not produce secondary pollution, is applicable to the soil treatment occasion that organic pollution is the main.
The utility model discloses a soil treatment device based on supercritical carbon dioxide operation is reliable and stable, and area is little, compact structure is favorable to extensive popularization and application.
Drawings
FIG. 1 is a schematic structural view of the soil treatment device based on supercritical carbon dioxide of the present invention;
FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1;
FIG. 3 is a cross-sectional view taken along line B-B of FIG. 1;
FIG. 4 is a schematic diagram of a side view structure of a limiting frame in the supercritical carbon dioxide-based soil remediation device of the present invention;
FIG. 5 is a schematic structural view of a reaction kettle in the supercritical carbon dioxide-based soil remediation device of the present invention;
FIG. 6 is a schematic structural view of a stirring mechanism in the supercritical carbon dioxide-based soil remediation device of the present invention;
The device comprises a main body 1, a crushing mechanism 2, a screening mechanism 3, a screening mechanism 4, a worm wheel 5, a stirring mechanism 6, a reaction kettle 21, a first roller 22, a second roller 31, a swing arm 32, a limiting frame 33, a sieve plate 61, a feeding cavity 62, a shaft sleeve 63, a heating sleeve 101, a raw material bin 201, a first motor 202, a second motor 301, a hinge shaft 302, a spring 303, a cavity 501, a worm thread 502, a worm 503, a positioning block 504, a stirring paddle 601, a water inlet pipe 602, an air inlet pipe 603, an exhaust pipe 604, a liquid discharge pipe 611 and a valve.
Detailed Description
The following description is presented to disclose the invention so as to enable any person skilled in the art to practice the invention. The preferred embodiments in the following description are given by way of example only, and other obvious variations will occur to those skilled in the art.
as shown in fig. 1 to 6, the soil treatment device based on supercritical carbon dioxide comprises a body 1, a crushing mechanism 2, a screening mechanism 3, a worm gear 4, a stirring mechanism 5 and a reaction kettle 6, wherein the crushing mechanism 2, the screening mechanism 3, the worm gear 4, the stirring mechanism 5 and the reaction kettle 6 are connected to the body 1; the upper end of the body 1 is provided with a raw material bin 101, a crushing mechanism 2 is correspondingly arranged below the raw material bin 101, the crushing mechanism 2 comprises a first roller 21 and a second roller 22, crushing blades which are mutually meshed are arranged on the first roller 21 and the second roller 22 to ensure that soil is crushed into fine particles, the first roller 21 moves along the clockwise direction, and the second roller 22 moves along the anticlockwise direction; the first roller 21 is connected with the screening mechanism 3 and drives the screening mechanism 3 to act; the second roller 22 is rotatably connected with the worm wheel 4 through a rotating shaft, and the worm wheel 4 is in meshing transmission connection with the stirring mechanism 5; stirring mechanism 5 install in reation kettle 6's central point puts, feeding cavity 61 has been seted up to reation kettle 6's the upper left side position, feeding cavity 61's top opening with screening mechanism 3 is corresponding to be set up, inlet tube 601 and blast pipe 603 are installed to reation kettle 6's top by upper right position, intake pipe 602 is installed to reation kettle 6's right side wall by upper position, reation kettle 6's left side wall is by bottom position and installs fluid-discharge tube 604.
The screening mechanism 3 comprises a swing arm 31, a limiting frame 32 and a screen plate 33; the limiting frame 32 is in a door-shaped structure and is obliquely arranged at the center of the second roller 22, the door frame above the limiting frame 32 is a solid part, and limiting grooves are formed in the inner sides of two lower door columns close to the upper door frame; swing arm 31 symmetry sets up the both sides of first cylinder 21, just swing arm 31 one end is fixed the eccentric position of first cylinder 21, the other end pass through articulated shaft 301 with the mobilizable connection in upper end of sieve 33, sieve 33 both sides erect the spacing inslot, just sieve 33 follows the length direction of sieve 33 runs through spacing 32 and can the spacing inslot removes. The swing arm 31 drives the sieve plate 33 to make reciprocating oblique movement in the limiting groove through the rotation of the first roller 21, so that the sieving effect is achieved.
The limiting groove is provided with a cavity 303 below, the cavity 303 is provided with a spring 302 along the vertical direction of the limiting frame 32, and the spring 302 is used for providing certain elasticity for the sieve plate 33 in the cavity 303, so that the sieve plate 33 can be better sieved.
The outer ring of the sieve plate 33 in the length direction is further provided with a protective cover, and the protective cover is used for protecting the outside of the broken particles from scattering, so that the soil particles are concentrated on the sieve plate 33.
The first roller 21 is connected with a first motor 201 through a first rotating shaft, the first rotating shaft penetrates through the first roller 21 and extends outwards to be connected with the worm wheel 4, and the second roller 22 is connected with a second motor 202 through a second rotating shaft.
Still be provided with heating jacket 63 outward reation kettle 6, reation kettle 6 feed cavity 61's below still is equipped with valve 611, heating jacket 63 is used for heating reation kettle 6 for provide the required cauldron body temperature of reation kettle 6.
Stirring mechanism 5 includes worm 502 and stirring rake 504, stirring rake 504 is installed the lower extreme of worm 502, still be equipped with locating piece 503 on the worm 502, locating piece 503 with the axle sleeve 62 that reation kettle 6 center set up cooperatees, worm 502 upper end is opened has the worm screw 501 with worm wheel 4 looks meshing, and through the meshing transmission of worm 502 with worm wheel 4, drive stirring rake 504 and rotate to improve the area of contact and the contact probability of organic pollutant in supercritical carbon dioxide fluid and the soil, make organic pollutant in the soil dissolve in the supercritical carbon dioxide fluid fully, and along with behind supercritical carbon dioxide fluid discharge reation kettle 6, make organic pollutant separate out from the soil through the change of pressure.
The feeding cavity 61 extends upwards to the position below the sieve plate 33 in the screening mechanism 3, and the inclined plane at the bottommost end of the feeding cavity 61 is equal to the inclined angle of the sieve plate 33, so that the screened fine soil particles are prevented from scattering outside.
the stirring mechanism 5, the reaction kettle 6 and a valve pipeline connected with the reaction kettle 6 are all made of high-temperature and high-pressure resistant stainless steel materials.
the working principle of the utility model is as follows:
The soil treatment device of the utility model crushes the solid soil particles into fine particles through the crushing mechanism 2, then separates the fine particles from the tree roots and plastic products which are difficult to be crushed through the screening mechanism 3, and introduces supercritical carbon dioxide fluid into the screened soil particles in the reaction kettle 6 for extraction operation, thereby realizing the effective treatment of organic pollutants in the soil; meanwhile, the rotation of the first roller 21 drives the screening mechanism 3 to move, and the rotation of the second roller 22 drives the stirring mechanism 5 to rotate, so that the internal structure of the whole soil treatment device is more compact, the arrangement of a motor and the complex control of a system are reduced, and the soil treatment cost is lower.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the principles of the present invention may be applied to any other embodiment without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (9)
1. a soil treatment device based on supercritical carbon dioxide is characterized by comprising a body, a crushing mechanism, a screening mechanism, a worm gear, a stirring mechanism and a reaction kettle, wherein the crushing mechanism, the screening mechanism, the worm gear, the stirring mechanism and the reaction kettle are connected to the body; the crushing mechanism comprises a first roller and a second roller, the first roller moves along the clockwise direction, and the second roller moves along the anticlockwise direction; the first roller is connected with the screening mechanism and drives the screening mechanism to act; the second roller is rotatably connected with the worm wheel through a rotating shaft, and the worm wheel is in meshing transmission connection with the stirring mechanism; stirring mechanism install in reation kettle's central point puts, feeding cavity has been seted up to reation kettle's upper left side position, feeding cavity's top opening with screening mechanism is corresponding to be set up, reation kettle's top is leaned on upper right position to install inlet tube and blast pipe, reation kettle's right side wall is leaned on the top position to install the intake pipe, reation kettle's left side wall is leaned on the bottom position to install the fluid-discharge tube.
2. the supercritical carbon dioxide-based soil remediation device of claim 1 wherein the screening mechanism comprises a swing arm, a spacing frame, and a screen deck; the limiting frame is of a door-shaped structure and is obliquely arranged at the center of the second roller, the door frame above the limiting frame is a solid part, and limiting grooves are formed in the inner sides of the two door columns below the limiting frame, close to the upper door frame part; the swing arm symmetry sets up the both sides of first cylinder, just swing arm one end is fixed the eccentric position of first cylinder, the other end pass through the articulated shaft with the mobilizable connection in upper end of sieve, the both sides frame of sieve is established spacing inslot, just the sieve is followed the length direction of sieve runs through spacing and can spacing inslot removes.
3. the supercritical carbon dioxide-based soil remediation device of claim 2 wherein a cavity is formed below the retaining groove, and a spring is mounted in the cavity in the vertical direction of the retaining bracket.
4. The supercritical carbon dioxide-based soil remediation device of claim 2 wherein the screen deck is further provided with a shield around its length.
5. the supercritical carbon dioxide-based soil remediation device of claim 1 wherein the first roller is coupled to a first motor by a first shaft, the first shaft extending through the first roller and outwardly to connect to the worm gear, and the second roller is coupled to a second motor by a second shaft.
6. The supercritical carbon dioxide-based soil remediation device of claim 1 wherein a heating jacket is provided outside the reaction vessel, and a valve is provided below the reaction vessel feed chamber.
7. the supercritical carbon dioxide-based soil remediation device of claim 1, wherein the stirring mechanism comprises a worm and a stirring paddle, the stirring paddle is mounted at the lower end of the worm, a positioning block is further mounted on the worm, the positioning block is matched with a shaft sleeve arranged at the center of the reaction kettle, and a worm thread meshed with a worm wheel is formed at the upper end of the worm.
8. The supercritical carbon dioxide based soil remediation device of claim 1 wherein the feed chamber extends upwardly below a screen deck in the screening mechanism and the slope of the lowermost end of the feed chamber is at the same angle as the slope of the screen deck.
9. The supercritical carbon dioxide-based soil remediation device of claim 1 wherein the agitation mechanism, the reaction vessel, and the valve lines connected to the reaction vessel are made of high temperature and high pressure resistant stainless steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920351473.4U CN209736326U (en) | 2019-03-19 | 2019-03-19 | Soil treatment device based on supercritical carbon dioxide |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920351473.4U CN209736326U (en) | 2019-03-19 | 2019-03-19 | Soil treatment device based on supercritical carbon dioxide |
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| Publication Number | Publication Date |
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| CN209736326U true CN209736326U (en) | 2019-12-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920351473.4U Expired - Fee Related CN209736326U (en) | 2019-03-19 | 2019-03-19 | Soil treatment device based on supercritical carbon dioxide |
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| CN (1) | CN209736326U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111286619A (en) * | 2020-02-03 | 2020-06-16 | 袁桐 | Recycling device of tungsten smelting waste residues |
-
2019
- 2019-03-19 CN CN201920351473.4U patent/CN209736326U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111286619A (en) * | 2020-02-03 | 2020-06-16 | 袁桐 | Recycling device of tungsten smelting waste residues |
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| GR01 | Patent grant | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191206 Termination date: 20210319 |
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| CF01 | Termination of patent right due to non-payment of annual fee |